Document Type

Conference Proceeding

Publication Date



We analyze the behavior of the density of states in a singlet s-wave superconductor with weak magnetic impurities in the clean limit by using the method of optimal fluctuation. We show that the density of states varies as In N(E) ∝ |E - Δ|(7-d)/4 near the mean field gap edge Δ0 in a d-dimensional superconductor. The optimal fluctuation in d > 1 is strongly anisotropic. We compare the density of states with that obtained in other recent approaches. © 2002 Elsevier Science B.V. All rights reserved.

Publication Source (Journal or Book title)

Physica B: Condensed Matter

First Page


Last Page